Rinnai R63LSE2 - Manual (Page 31)

VA Series Outdoor LS Manual 31
Temperature Controller Installation
Follow the procedure below to install MC-91 or
MCC-91 temperature controllers.
Do not attempt to connect the temperature controllers with the power on. There is 120
volt potential, next to the temperature controller connections inside the unit.
Do not connect the temperature controller to the 120VAC terminals provided for
the optional solenoid drain valves.
All service and wiring should be performed by a registered installer.
WARNING
Outline of Temperature controller
securing screw
1-21/32"
3-5/16"
securing screw
wiring hole
Mounting on the wall
1. Determine a suitable location for the
controller.
2. Make three holes in the wall as shown.
3. Run the cable between the controller and the
Rinnai water heater or the controller and
another controller.
4. Remove the face plate from the temperature
controller using a screw driver.
5. Connect the cable to the temperature controller.
6. Mount the controller to the wall using the
holes drilled in step 2.
7. Disconnect the power from the Rinnai water
heater.
8. Remove the cover of the Rinnai water heater.
9. Remove the plastic cover from the PCB and
electrical connections.
10. Thread the cable through the access hole at
the base of the unit and connect the wires to
the controller terminals on the right hand side
bottom of the PCB.
11. Secure the controller cable using the clamp
provided.
12. Replace plastic cover over PCB and then
replace the cover of the Rinnai water heater.
CABLE CLAMP
TEMPERATURE
CONTROL CABLE
TEMPERATURE CONTROL
CONNECTION TERMINALS